1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kogti [31]
3 years ago
9

What is the freezing point of a 0.19 m solution of glucose, c6h12o6, in water? (kf for water is 1.858°c/m.) a. –0.18°c b. 0.18°c

c. 0.35°c d. –0.35°c e. –0.71°c?
Chemistry
1 answer:
vlabodo [156]3 years ago
8 0

Answer:- d. -0.35 degree C is the right answer.

Solution:- depression in freezing point, delta Tf formula is...

delta Tf = i x m x kf

where, i is Van't hoff factor. glucose is covalent compound and does not dissociate to give ions and so the value of i for this is 1.

m is molaity and kf is the molal freezing point constant.

Let's plug in the given values in the formula..

delta Tf = 1 x 0.19 x 1.858

delta Tf = 0.35

Pure water freezes at 0 degree C.

So, freezing point of solution = 0 - 0.35 = -0.35 degree C

You might be interested in
In a decomposition reaction involving a gaseous product, what must be done for the reaction to reach equilibrium?
Vadim26 [7]

To prevent the gaseous product from escaping, the system must be sealed.

<h3>What are equilibrium and an example?</h3>

Equilibrium is characterized as a state of equilibrium or a stable situation in which conflicting forces balance one another out and no changes are taking place. In terms of economics, equilibrium occurs when supply and demand are equal. When you are composed and steady, you are in an equilibrium state.

<h3>What three types of equilibrium are there?</h3>

Equilibrium can be classified as either stable, unstable, or neutral.

<h3>Which four variables have an impact on equilibrium?</h3>
  • Equilibrium is influenced by the system's temperature, pressure, and concentration.
  • When one of these variables changes, the system's equilibrium is upset and it readjusts itself until it reaches equilibrium again.

learn more about equilibrium here

brainly.com/question/517289

#SPJ4

8 0
2 years ago
I need y’all’s help please
nikitadnepr [17]

Answer:

6 mass

Explanation:

because the si unit of gram is mass

7 0
3 years ago
An ___is usually a homologous structure that is shared by all organisms in a group~science
Paraphin [41]
A shared derived characteristics is usually a homologous structure, such as a backbone, that is shared by all organisms in a group.
8 0
3 years ago
A section of the periodic table is shown below: A portion of two rows of the periodic table is shown. The first row reads two he
cluponka [151]

 The statement  which is true  is

Fluorine  is more reactive  than nitrogen because fluorine  needs  only  one electron to fill  its  outermost  shell.


     <u><em>Explanation</em></u>

Fluorine  has  electron configuration  of 1S²2S²2P⁵  while nitrogen  has 1S²2S²2P³  electron configuration.

The 2P sub shell  for nitrogen   is  half filled  therefore it is sable  than fluorine.

since  p orbital  can hold a maximum  of  6  electrons ,Fluorine  requires  1 electron  to  completely fill  it's 2P  sub shell  which make it    more  reactive than nitrogen.



7 0
3 years ago
If I leave 750 mL of 0.75 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates, what will t
maks197457 [2]

the answer to your question is

M1V1=M2V2

V2=750-150=600 ml

0.75M*750 ml = M2*600

M2=0.75*750/600 ≈ 9.38 M


3 0
3 years ago
Other questions:
  • A combination reaction occurs when one reactant forms two or more products true or false
    10·2 answers
  • Distillation is the process of separating liquids by using
    11·2 answers
  • Erosion and weathering are examples of which types of forces?
    12·1 answer
  • A goose is flying south for the winter at a constant speed. Keep in mind that one mile is 1.61 km, and one pound is 454 g.The go
    11·1 answer
  • Which best describes the molecules of an ideal gas?
    11·1 answer
  • What would be a correct unit of measurement for velocity?
    15·1 answer
  • How many micrometers are in 1.25 miles. Tell me how you got that answer as well.​
    15·1 answer
  • Which term refers to an element that conducts electricity at high temperatures, but not at low temperatures?
    9·2 answers
  • Which of the following statements is false about drawing Lewis structures?
    11·1 answer
  • Describe the structure of a complex molecule such as plastic at the molecular level.​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!